Excavator cowling



FIG. 1 is a back elevation view of an excavator cowling showing the new design; and,

FIG. 2 is a back, right-side, and top isometric view of the excavator cowling.

The left side forms no part of the claimed design.

The broken lines show elements of the excavator cowling that form no part of the claimed design. The illustrated central areas being colored darker than the surrounding areas is a part of the claimed design. 

CLAIM The ornamental design for an excavator cowling, as shown and described. 